Oil-engine-feeding device



F. GHOBART AND B. IAHNKE.

OIL ENGINE FEEDING DEVICE. I APPLICATION FILED IAN. Il, 1919. v .11,411.9@25 menmmag, w22.

2 SINUS-SHEET l.

aII

III

.INIT

` nii, lllmu lllll ZZ ,276 @I /Z v YZ -autres eretiteearear eerie..

ornaments-Fiemme Device.

'Specicationiof Letters Patent.r

JAHNKE, OF BELGIE', WISCONSIN, ASSIGNORS OF CHICAGO, ILLINOIS, A

Parenteel Mar. eef, ieee,

Application filed January 11', 1916. Serial No. 270,698.

y To all 'wlw/m. it may concern.'

Be it known that we, FRANKLIN G. Ho- BART and CHARLES B JAHNKE,` citizens of the United States, residing at Beloit, in the county of Rock and State of iVisconsin, have invented a certain new and useful lmprovenient in Oil-Engine-reeding Devices, of which the following is a specification.

This invention relates to that class of fuel-feeding mechanism for'use upon oil burning engines in which, as is well understood in the art, a supply tank is used with a constant level of oil'which is to be delivered to the engine. The principal object of the invention is to provide, in combination with such tank, an injection pump, preferably located inthe tank itself and receiving oil therefrom, to force said oil into the l engine. A further object of the invention ,is to provide, with such a tank and injection pump, a supply pump, Vpreferably also located inside the tank, for maintaining a constant level of oil in the tank, the whole being preferably so arranged that both pumps may be conveniently operated by a single operating mechanism with a minimum amount of piping and parts. A further ob ject ofthe invention is to provide means by which the pumps may be operated automatically by the engine itself, or by hand, if desired, and may, `in the former case, be moved out of engagement with the parts of the 'operating engine, thereby shutting off the supply of fuel oil and stopping the engine, or permitting movement of the engine by hand.

The invention consists in means for carrying out the foregoing objects, which can be easily andeconomically made, which is simple and compact in construction, satisfactory in operation and not readily liable to get out of order. Thel invention further consists in other features and details which will'be hereafter more fully set forth in the specification and claims.

Referring to the drawings, in which similar numerals indicate the same parts throughout the several views,

Figure 1 isv a vertical sectional view through mechanism illustrating this invention in its preferred form, taken on the line 1 1, of Figure 2.

Figure 2 is a plan View taken on the line 2 2 of Figure l.

Figure 3 is another vertical sectional view taken on the line 3-3 of Figure 2.

CORPGRATION QF Figure 4 is a vertical sectional view taken at-right angles to Figure 3 on the line 4 4 of that figure.

Figure 5 is an alternative construction of an essential part of Figure 4.

The device is shown appliedv in connection with an engine crank shaft 10, mounted in suitable bearings 12 from which is hung by suitable bolts or screws 14 the constant level oil supply reservoir or tank 16, provided with a suitable cover 18. The reservoir is provided with a dam or spillway 20 -over which any excess of oil 32 flows to a.`discharge pipe 22 leading back to an original sourceof supply, not shown; also with a sight glass 24 through which the level of oil in thereservoir can be inspected. @il conveyed to the bottom of the reservoir through the pipe mechanism 26, 28show'n reservoir through the su lv um c linder 30. Pipe 22 discharglg oilpto titie game source of oil supply, heretofore referred to, not shown in the drawing.

Supply pump cylinder 30 is cent-rally bored to provide an enlarged passage 34 and smaller passage 36 entering supply pipe 28, there being at the juncture of these passages a ball valve 38, shown in Figure 3. Reciprocatable in this passage 34 is a` hollow supply pump plunger 40 resting upon a coiled spring 42 and carrying at its bottom a ball valve.A 44 controlling access to the interior passageway 46 within the plunger 40. In the sides of this plunger 40 are ports or passageways 48 alwaysvin communication with suitable corresponding passageways 50 in the side walls of the pumpcylinder 30, so

that oil drawn by the supply pump from lin Figuresl and 3, is delivered into .the

' 84, spring 86 and feed i 96 the springs return the. pump bearing vengages vwheel movement draws oil into chamber 34, past valve 38, so by properly reciprocating pump1 plunger 40 the level of oil 82 in receptaclev 16 may be maintained constant.

ln receptacle 16 adjacent to the supplyump is an-injiection pump cylinder. and4 its solid pump plunger 58, supported upon spring 60. Below plunger 58 is always an oil chamber 62 provided with intake open` ing 64, controlled by a ball valve 66' contacting the lower end of rod 68 and normally heldin closed position by a spring 7 0. Oil space 62 is provided with discharge passage 72 closedby ball valve 74 supported' by spring 76. @il flowing from passage 72' past valve 7 4 enters feed pipe 7 8 leading to the engine or other device which is to b'e supplied with oil by the mehanism of this invention. Figure 5 shows an alternative construction in which passage 82, ball valve pipe 88, corresponding to the parts 72-7 8 are located at the side of the chamber 16.

Shaft 10 carries a suitably shaped cam 90 for operating the pumps. Cam 90 open ates lever mechanism 92, (pivoted on a pin or stud 94, conveniently loca-ted on a fixed support,) through engagement with roller 96. Bearing members 98 and 100 on lever 92 enga e respectively the upper ends of ungers 30 and 58. As cam 90 reaches the position where its high point 91 96 on thelever 92, the lever is rocked `in a counterclockwise direction' about pin 94 and the pump plungers are accordingly depressed against the action of their yrespective springs 42 and 60. As cam. 90 moves its high point 91 otlj' from wheel plungers to elevated position.

Loosely-j'ournaled about crankshaft 10 is anothercam 102 having its cam face 103 upon one portion' of another lever member 104, also fulcrumed upon pin 94. Attached to cam 102 by crank pin-106 is a rod 108 leading to the governor. not shown, of the engine, which governor is of such a type that it moves rod108 and consequently cam face 103 backward and forward with respect to the sha-ft, in accordance with variations in the load on the engine.

Lever.104 has an arm portion 105 located substantiallyabove ball valve 66.' inserted through this member 105 is an adjusting screw 112'held` n more or less locked position by a spring 114. mZlhe upper end of rod 68 loosely enters the' lower Yportion of member 105 and takes bearing against the 'lower end ofscrew'112. By rotating screw 112 the relation of thel rod 68 and consequently ball 66 to lever 104 maybe adjusted. When, in the movement ofthe engine, cam 102 moves lever 104 as far asit will go to the left, as viewed in Figure 1, rod 68 is moved downward, thus opening valve 66 against the acrampas tion of spring 70.' position until movement of the engine causes cam 102 to move to such other position that can close valve 66.

spring i provide vfor :hand operation ln order to of the pumps in starting the engine, and' `also to provide forlock'lng the pumps 1n such a position ,that shaft 10 and cam' 90 may be rotated if desired without operating the pumps, lever 92 is provided with suitably located cam faces 116 and 118 adapted to be engaged by a tooth 120 on a hand lever 122. .Thesecam faces 116and 118 are so arranged and shaped that as long as the operator rocks handle 122 to keep tooth 120 on cam face 116 only, he can rock lever 92 to manipulate the two pump plungers in the same manner as though they were depressed by the action of cam 90, and that when he swings the lever 122 sufhciently in a clockwise direction, as viewed in Figure 1, so that tooth 120 passes along cam surface 118, he locks the pump plungers in depressed position. In this position lever 92` is so held that roller 96 does not engage the face of cam 90, wherefore the cam can vrotate freely without touching or in any way affecting roller 96, lever 92 and attached parts. ln this position the pumps stop and the engine stops for want of fuel oil. y

In order to insure the free operation of This valveis held in this cam 102 during the operation ofthe engine of sleeve 124 and theadjacent parts, thus insuring free lmovement of cam 102;

ln the complete operation of the device,

main shaft l0 rotates continuously, thus rotating cam 90 continuously to, at each revo- A lution, depress pump `plungers 40 and 58 against `tle actions of their respective supporting springs. The operation of pump plunger 40, as described` maintainsa constant level of oil 32 in chamber 16. Assume that plungers 40 and 58 -are at the bottoms of their strokes and are beginning tomove upward. Valve 66 is at this time held in depressed position ofl from its seat so that there is a free passage of oil from chamber 16 to passage 64. Upwardmovement of lunger 58 creates a vacuum in oil'space 62 which fills by its drawing oil 32 past valve 66 from chamber 16. When plunger 58 reaches thetop of its stroke oil space 62 is full and the pump is capable, if so desired, of ejecting the entire amount of oil past valve 7 4 (c1184, as the case may be) into the is held open, oil in pump space ,62 is returned past valve 66 to chamber 16. without interfering with the smooth operation of the pump plunger 58, the governor of the engine through cam 102 determines just how much oil is delivered to the engine at each stroke of the pump plunger. The two pumps are located side by side in chamber tached to the oil chamber 16, but the method of connection is an immaterial detail.

ln applying the device of this invention to a two cylinder engine, mechanism identical with t-hat shown and described is simply added on the other sideof shaft 10, with contact points of members 110 and 96 at 180o around shaft 10 from those shown in the drawing.

Similarly, a plurality of these mecha-i nisms can be used for operating three and four cylinder engines, by arranging the respective operating contacts at suitable angular positions around the shaft.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is

l. In mechanism of the class described, the combination with a constant level oil chamber, of a pair of pumps arranged within said chamber, one for supplying oil thereto and the other for drawing oil therefrom, and means for operating said pumps.

2. In mechanism of the class described, the combination with a constant level oil chamber, of a pair of pumps arranged within said oil chamber. one operable to supply oil directly thereto and the other operable to draw oil directly therefrom, and means for operating said pumps.

3. In mechanism of the class described, the combination with a constantv level oil Y chamber, of a pair of reciprocating pumps arranged within said chamber, one for supplying oil thereto and the other for drawing oil therefrom, and means for simultaneously reciprocating said pumps in the same direc tion'.

4. ln mechanism of the class described, an oil receptacle provided with an overflow for maintaining a constant liquid level within said oil receptacle, a pair of pump cylinders located in said receptacle, of reciprocatable pump pluugers mounted in each of said pump cylinders, and a single rocking member simultaneously engaging the ends of said pump plungers operable to simultaneously move the plungers in the same direction; and means for actuating s aid rocking member,

one pumplbeing so connected up as to deliver Thus oil into said chamber, the other being so connected up as to deliver oil from said chamber, for the purposes, set forth. Y

' 5. ln mechanism of the class described, the combination with a constantv level oil chamber, of al pair of Aindependently operating pumps arranged within said chamber, one for supplying oil thereto and the other for drawing oil therefrom, and meansfor operating said. pumps.

6. In mechanism of the class described,.the combination of an oil chamber, a pair of pumps in connection with said chamber, one delivering oil to and the other delivering oil from said chamber, and mechanism adjacent to said chamber, including a single cam connected with said pumps and operable to actuate them simultaneously.

.7. In mechanism of the class described, the combination of an oil chamber, apair of pumps in connection with said chamber, one delivering oil to and the other delivering oil from said chamber, a movable cam mechanism adjacent to said chamber, means interposed between said cam mechanism and said pump, whereby the cam mechanism operates said pumps simultaneously, andan adjustable intake valve mechanism for said second mentioned pump operable to control the amount of oil delivered thereby from said oil chamber.

8. In mechanism of the class described, a rotatable engine shaft, an oil tank adjacent thereto, apair of pumps mounted inside of said oil chamber, one delivering oil to the chamber, the other delivering oil from the chamber, a valve controlling the admission of oil from said chamber to the second pump, a cam on the engine shaft, means interposed between said camJ and said pumps whereby the cam operates the pumps simultaneously, another cam controlled by the engine governor, and means interposed between the second cam and said valve on the second pump, whereby the engine governor determines what proportion of the oil forcedby said second pump is delivered outside of the oil chamber and what proportion is returned to it, for the purposes set'forth.

9. In mechanism of the class described,the combination with a shaft rotated by an engine, an oil chamber adjacent to said shaft, a pair of pump cylinders within said chamber,

a pair of pump plungers, a pair of springs supporting said pump plungers, one for each pump cylinder, a rocking lever engaging both of said pump plungers, a cam on said shaft engaging said rocking member to move said pump plungers in their respective cylinders against said springs, piping connections whereby one of said pumps brings in oil to maintain a constant level in said oil chamber, piping Connections whereby the second pump delivers oil from said chamber to the engine, an intake valve for the second 13o ber,

' other of said cam faces to lock pump located in the oil Within said chamber,

a valve controlling the admission of oil from the chamber to said intake opening, a cam member controlled by the governor of the engine, and means between said second cam and said intake valve on the second pump arranged to hold said last mentioned valve open during a predetermined portion of the delivery Stroke of the second pump, forfthe purposes set forth.

10. ln mechanism of the class described, an oil chamber, a pair of pumps, one adapted to deliver o il to said chamber, the other adapted to receive oil from said chamber and deliver it elsewhere` a rock-able member adapted to be moved to simultaneously operate said pumps, an engine shaft, means on said 4shaft adapted to rock said rockable member, and a hand lever contacting said operatable member in such a ivay that the operator may, at will, move said rockable member independently of the engine shaft and may lock said rockable member in such a position that the pumps are out of operative connection with the engine shaft,

f for the purposes set forth.

v11. In mechanism adapted for application to an -oil engine, an oil chamber, a pump adapted to receive` oil from said chamber, and deliver it to any engine to which the device may be applied, a rockable member adapted to be moved to operate said pump. a cam adapted to be driven by the engine to which the device may be applied adapted to periodically engage said rockable member to operate the pump, a multiple faced Acam carried by the rockable memand a hand lever normally out of engagement with said cam adapted to be moved-at the vvill of the operator into and out of engagement with one of said cam faces to manually operate the rockable vmember and the pump independently7 of movement of the engine to which the device may be applied, and also adapted to be alternately moved into engagement with anthe parts in such a position that the operation of the pump may be stopped.

12. lin mechanism adapted for application to an oil engine, an oilchamber, a pump spring actuated in one direction adapted to receive oil from said chamber, and deliver it to any engine to which the device may be applied, a rockable member adapted to be moved to operate said pump in the o osite direction, a cam adapted to be drlven lby the engine to which the device may be applied,'adapted to periodically engage said rockable member to operate the a multiple faced cam carried by ,the

pump, rockable member, and anhand lever normally out of engagement with said Vcam adapted to be 'moved at the will of the operator into and out of engagement with one rampes of said cam faces to manually opera'tethe rockable member and the pump independently of the movement of the engine to which the device may be applied and also adapted to be alternately moved into eugagement with another of said cam faces tf lock the parts in such a position that the operation of the puinp'may lbe stopped.

13. ln mechanism of the class described,

the combination of an engine shaft, a tivo 'i pump device to be operated by said engine shaft, a cam on said shaft adapted to operate said pumps, a valve mechanism controlling one of said pumps, a second cam on the shaft adjacent to the first cam for operating said valve control, and a sleeve on the shaft andbetvveen it and said second cam supporting said second cam for rotation about the shaft, the sleeve being of greater'length than the Width'o'f the second cam to insure freedom of -action of the second cam, for the purposes set forth.

, 14. ln mechanism of the class described,

an engine shaft, an oil chamber supported from the bearing of the engine shaft, a pair of pumps in said oil chamber, one adapted to supply oil to said chamber, the other adapted to deliver oil from said chamber, a supply valve Within said chamber adjacent to the second pump adapted to control passage of oil to and from the oil chamber and the second pump, a pair of operating levers journaled upon a suitable 4support adjacent to the shaft, a cam on said shaft for operating one of said levers, mea-ns on said lever to simultaneously operatew said pumps as said cam rotates, a second cam reciprocatable on said shaft engaging the second lever arm, a connection between said second lever arm and the valve of the second pump, the parts controlling said valve being arranged to selectively determine what proportion of oil the second pump normally delivers at each stroke from said chamber and what proportion it pumps backA into said chamber, for the purposes set forth.

15. ln mechanism of the classv described,

an engine shaft, an oil chamber supported from the bearing of the engine shaft, a. pair of pumps in said oil chamber, one adapted to supply oil to said chamber, the other adapted to deliver oil from said chamber, a suction valve Within said chamber for 'the second pumpl adapted to control passage of oil to and from the oil chamber and the second pump, a pair of operating levers fulcrumed upon a suitable support adjacent to the shaft, a cam on said shaft for operating one ofsaid levers, means on said lever to simultaneously operate Said pumps as said cam rotates, a second lcam reciprocatablev on said shaft engaging the second lever arm, a connection between said second lever arm and the valve of the second pump,

Minoes ply pump for maintaining oil in said chamber, a second pump taking oil from said chamber, both pumps being located partly within said oil chamber.` and means for operating both pumps.

17. ln mechanism adapted to be applied to an oil engine, av fuelsupply mechanism comprising an oil receptacle provided with an overflow for maintaining a constant liquid level within said oil chamber. a pair of pump cylinders located insaid receptacle, reciprocatable pump plungers mounted in each of said pump cylinders, meansoperated' by the engine engaging the ends of said pump plungers to operate them, one pump being so connected up as to deliver oil into said chamber, the other being so connected up as to deliver oil from said chamber, for the purposes set forth.

18. ln mechanism adapted to be applied to an oil engine, a fuel supply mechanism comprising an oil vchamber*provided with an overflow for maintaining a constant liquid levelvwithin said oil chamber, a pair of pump cylinders located adjacent to each other within said chamber, connections for one of said pumps, whereby it supplies oil to said chamber. connections for the other pump cylinder, whereby it delivers o'il from Vsaid chamber. a pump plunger -for each pump cylinder. means operated by the engine to which the device may beapplied for operating said ypump plungers, and mechanism for varying, while the pumps are in operation, the amount of oil delivered by the second said pump, for the purposes set forth. y l19. ln mechanism adapted to be applied to an engine mechanism and its governor,

.an oil chamber, a pair of pumps mounted inside cfsaid oil chamber, one delivering oil to the chamber, the other delivering, from the chamber, a valve controlling that admissihpn of lbil from said chamber to the second pump, means whereby the engineg mechanism to which the device 'may be Japplied operates the pumps, a cam controlled by the engine governor to which the device may be applied, andmeans interposed between said .arn. and said valvegon the second pump,

. whereby the engine governor to which the device may be vapplied determines what from said chamber to the engine to which I proportion of the oil forced by said second pump is delivered outside of the oil cham-- ber and what proportion is returned to it, for the purposes set forth.

20. ln mechanism adapted to be 'applied to an engine mechanism and its governor, an oil chamber, a pair of pump cylinders within said chamber, a pair of pump plungers, a pair of' springs supporting said pump plungers, one 4for each pump cylinder, mechanism driven bythe engine to which the device maybe applied, operating said pump plungers against said springs, piping4 connections whereby one of said,- pumps brings in oil to maintain a constant level in said oil chamber. piping connections whereby the second pump deliversoil the device may be applied, an intake Vvalve'- for the second pump located in the oil within said chamber, a valve controlling the admission of oil from the chamber to said intake opening, a cam member controlled by the governor ofthe engine to which the device may be applied` and means vbetween said cam and said intake valve on the second pump arranged to hold said last mentioned.

vvalve open during a predetermined portion of the delivery stroke of the second pump,n for the purposes set forth. 95

21. ln mechanism adapted to be applied to an engine mechanism having a shaft and its governor, a two pump device to be operated by said engine to which the device may be applied, means whereby the engine to which the devicemay be applied operates said pumps, a valve mechanism controlling one of said pumps, a cam driven by the en 'gine to which thedevice may be applied,

governor "to which the device may be applied for loperating said valve control. and a sleeve on the Vshaft and" between it and said cam supporting said cam for rotation about the shaftthe sleeve being of greater l length than the width of the cam to insure freedomnof action-.of the cam, for the purposes set'forth.

22. ln mechanism adapted to be applied to an engine mechanism having a shaft and its governor, an oil chamber, a pair of pumps in said oil chamber, one adapted to supply oil to said chamber, the other adapted to deliver oil from said chamber, a supply valve' within said chamber adjacent to the second pump adapted to control passage, 12o of oil to and from the oil chamber and the second pump, means whereby the yengine to which the device may be applied operates the pumps, a cam reciprocatable on the shaft of nthe engine to whichvthe device may be applied,l means whereby the cam controls thevalve of the second pump, the parte controlling said valve being arranged to selectively determine what proportion of oil the second pump normally delivers at each i strokel from said chamber and what proportion it pumps back into said chamber, for the purposes set forth.

Q3. In mechanism adapted to be applied to an englne mechanism having a shaft aridv lts lgovernor, an oil chamber, a pair of pumps in said oil chamber, one` adapted to' second pump, means whereby the engine operates the pumps, a Cam' reoiprocatable on the shaft of the engine to which the device :Minoes may be applied, means whereby the cam Acontrols the Valve of the second fp'ump, the parts controlling said valve being arranged to selectively determine what proportion of oil the second pump normally delivers at each stroke fro-In said chamber and WhaJ proportion it pumps back into said chamber, and means for selectively adjusting the connection between the cam and said supply valve for the second pump, vforthe purposes set forth.

ln Witness whereof we have hereunto subscribed our names. y

FRANKLN G. HOBART. CHARLES B. JAHNKE. 

